Question: Fill in the blank: Automated bidding is powered by _____.
- HTTP cookies
- virtual reality
- machine learning
- ad tracking
Explanation
HubSpot’s Google Ads guidance describes automated bidding and Smart Bidding as systems that use predictive models to set bids during each auction based on performance signals and prior campaign data. HubSpot Blog+1
That means the bid decision is driven by pattern recognition and optimization logic rather than by a static rule or a manual adjustment. HubSpot Blog
HubSpot also notes that these automated bidding features identify high-converting opportunities and adjust toward better return, which reflects an AI-based process. HubSpot Blog+1
Because the system is making predictive bidding decisions from large sets of signals, the underlying mechanism is the one used in modern AI optimization. HubSpot Blog
Why the other options are incorrect
HTTP cookies Cookies can support tracking and audience recognition, but they do not make auction-time bid decisions. HubSpot Blog
virtual reality This is an ad experience format, not the optimization system behind automated bidding. HubSpot Blog+1
ad tracking Tracking records interactions and conversions, but it does not perform the predictive bid setting itself. HubSpot Blog+1
Source for verification
HubSpot: How to Use Google Ads AI for Your Next Campaign HubSpot Blog
HubSpot: Online advertising: All you need to know HubSpot Blog
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